<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>iframe</title>
  <style>
    iframe {
      width: 80%;
      height: 500px;
    }
  </style>
</head>
<body>
  <!-- <iframe src="./index.html"></iframe> -->
  <iframe src="http://chimee.org/#demo"></iframe>
</body>
</html>